Skip to main content
U.S. flag

An official website of the United States government

Data Releases

The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.

Filter Total Items: 16399

Rainfed and Irrigated Cropland Areas for Africa Rainfed and Irrigated Cropland Areas for Africa

Agriculture consumes the largest share of freshwater globally, therefore, distinguishing between rainfed and irrigated croplands is essential for agricultural water management and food security. Yet in Africa, disaggregating croplands is challenging due to the continent's vast size, diverse climates, and varied agricultural practices. In this study, a framework using the Budyko model was...
By
Earth Resources Observation and Science (EROS) Center

Optimal harvest of a theoretical population under system change Optimal harvest of a theoretical population under system change

This code solves optimal harvest policies under different scenarios of system change, represented as changes in demographic parameters over time. This document contains code to solve policies using backwards iteration stochastic dynamic programming, project populations forward to simulate the policies, and generate figures.
By
Cooperative Research Units

Data Release: Germination and growth of Montezuma cypress (Taxodium mucronatum) from the Nazas River to experimental salinity treatments Data Release: Germination and growth of Montezuma cypress (Taxodium mucronatum) from the Nazas River to experimental salinity treatments

During March and April of 2018, viable seeds were collected from Cañón de Fernández State Park in Lerdo, Durango and sent to Lafayette, LA for germination. This study tested the seedling growth and germination of Taxodium mucronatum from the Nazas River watershed at different salinity concentrations representing freshwater, moderate salinity, and high salinity.
By
Wetland and Aquatic Research Center

Radiocarbon age dating of biological material from cores collected off central California in 1999, 2006, and 2019 Radiocarbon age dating of biological material from cores collected off central California in 1999, 2006, and 2019

Results of radiocarbon age dating of planktic and benthic foraminifera collected from cores obtained in 1999, 2006, and 2019 offshore central California in the vicinity of Morro Bay.
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center

Active Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) projects vector data Active Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) projects vector data

Shapefile contains project boundaries for active Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) projects as of December 2022.
By
Wetland and Aquatic Research Center

CE–QUAL–W2 water-quality models for Klamath Straits Drain recirculation scenarios, Klamath River, Oregon, 2006–15 CE–QUAL–W2 water-quality models for Klamath Straits Drain recirculation scenarios, Klamath River, Oregon, 2006–15

A hydrodynamic, water-temperature, and water-quality model (CE-QUAL-W2; Wells, 2020) of the Link-Keno reach of the Klamath River (Oregon) was used for calendar years 2006–15 to run a series of base and recirculation scenarios. These model runs were implemented to test alternative scenarios for routing some of the Klamath Straits Drain discharge into Ady Canal. The model scenarios were...
By
Oregon Water Science Center
Was this page helpful?